baber/WOPTO huggingface dataset:
Patent GB-980327-A (GB)
Title: Positioning device for x-ray apparatus
IPC: A61B6/10
Filed: 1961-07-26
Abstract: 980,327. X-ray apparatus. MEDICOR RONTGEN MUVEK. July 26, 1961 [July 29, 1960], No. 27144/61. Heading H5R. A positioning device for lung teleradiography X-ray apparatus includes a height-adjustable ray interceptor plate 2 for protecting the lower abdomen of patients from radiation and a film cassette holder 1<SP>1</SP> connected to the interceptor plate for vertical movement therewith on common support member 3, the cassette holder being also arranged for individual vertical movement relative to the interceptor plate for adjustment according to the film size used. A film size scale 4 is fixed with respect to the interceptor plate and is associated with the cassette holder for indicating, in associated film sizes, the vertical position of the cassette holder relative to the interceptor plate, the film size scale being so calibrated with respect to the vertical position of the cassette holder that when, in operation, a separately height adjustable X-ray tube positioned at F<SP>1</SP>, F<SP>11</SP> on the opposite side of the interceptor plate to the cassette holder is adjusted so that the horizontal, main beam C<SP>1</SP>, C<SP>11</SP> is directed at the film centre the upper shadow margin B<SP>1</SP>, B<SP>11</SP> is projected upon the lower edge of the film in the cassette. The common supporting member 3 may have a graduated scale 6 and a further associated scale 5. The markings a, b, c on scales 4, 5 correspond to different film sizes, and the reading on scale 6 adjacent the appropriate film size indicates the necessary height of the X-ray tube.
Patent GB-193353-A (GB)
Title: Improvements in or relating to closing the filling apertures of boxes that have to be hermetically sealed
IPC: B65D41/00
Filed: 1922-10-07
Abstract: 193,353. Nielsen, N. J. Oct. 7, 1922. Soldering; soldered joints. -The filling opening of a milk tin &c. is closed bv means of a metallic member 3 filled with a flux 4 and covered by a sheet of solder, tin or the like 5, the member being placed over the opening and heat applied, when the solder &c. runs and secures the member to the tin, sealing the opening.
Patent GB-729717-A (GB)
Title: Process for the production of optical isomers
Filed: 1953-10-05
Abstract: The invention consists of a process for resolving threo 1-(p-methylthio-phenyl)-2-aminopropane-1 : 3-diol into its optical isomers by the following steps: mixing the DL-form with a small amount of one of the active forms, heating with enough water to dissolve the solids when warm but not at ordinary temperatures, cooling, collecting the separated optically active form, adding the same weight of DL-form as the weight of active form separated, heating to dissolve, cooling, and collecting the other optical isomer which separates.  This process may be repeated indefinitely provided the DL-form is sufficiently pure, the active forms being obtained in the pure crystalline state.  Preferably the initial solution contains 2-15 per cent (e.g. 8-12) of active form by weight of the DL-form and 7-15 parts of water by weight of total solids.  Solution may be facilitated by the addition of mineral acid to combine with up to 85 per cent of the DL-form, preferably 65-80 per cent.  Examples are given of the process using hydrochloric acid.
Patent GB-1511724-A (GB)
Title: Substituted benzimidazoles
IPC: C07D417/12
Filed: 1975-06-27
Abstract: Sulphonylbenzimidazoles of the formula I <IMAGE> in which R1, R2 and R3 have the meaning given in Patent Claim 1, are obtained by reaction of a corresponding tautomeric benzimidazole (i.e. a compound I which contains an H atom which can be located on the N atom 3, instead of the SO2R1 group) with a sulphonyl chloride R1SO2Cl. Resulting isomers can be separated. The compounds I are very useful as medicaments for the control of viruses.
Patent GB-408267-A (GB)
Title: Engine-driver's valve for automatic air brakes
IPC: B60T15/08
Filed: 1932-10-03
Abstract: 408,267. Fluid - pressure brakes. SCHAWGULIDZE, E. A., 20, Ul. Urizkogo, Kutais, U.S.S.R. Oct. 3, 1932, No. 27456. [Class 103 (i).] In a driver's brake valve members actuated by the pressure in a slide valve chamber and controlling the discharge of air from the train pipe to the atmosphere and the admission of air from the main reservoir to the train pipe during braking and releasing, are moved in opposite directions to obtain rapid opening of the air flow apertures. Two automatically operated slide valves II, III slide one upon another and are superposed on a third manually operated slide valve I and when the train pipe is directly connected by slide valve I, either with the main reservoir during charging or with the atmosphere during emergency braking, the other slide valves are out of action and intermediate service pressures are produced and maintained by moving the slide valve I to intermediate positions. The slide valves II, III are operated by pistons 25, 26 respectively subject to the pressure in the slide valve chamber A<1> and the piston 25 is also subject to the pressure of a spring 28 and the piston 26 to the pressure in the train pipe T. Port 9 is connected to main reservoir, port 14 to the train pipe and port 21 to the atmosphere. In charging positions C, the valve I is at the extreme left and ports 9, 14 are directly connected by a groove 10, the train pipe thus being charged from the main reservoir which also charges the chamber A<1> by groove 5 and port 4 until the piston 25 and valve II are moved to the extreme left hand position. When the valve I is moved to the running position R the chamber A<1> is momentarily opened to atmosphere by ports 20, 21 until the piston 25 and valve II have moved to the right to cover the port 20. The movement of valve II opens the train pipe to atmosphere by ports 11, 12, 16, 20 and groove 15 of the valve III until the valve moves to the right owing to fall of train pipe pressure. The pressure in the train pipe and chamber A<1> is maintained by connection to the main reservoir by movement of pistons 26, 25 respectively. In braking position S chamber A<1> is opened to atmosphere through port 20 which causes pistons 25, 26 to move together and move the valves II, III in opposite directions to open the train pipe rapidly to atmosphere by ports 11, 12, 16, 20 and groove 15, which causes the piston 26 to move to the right. This movement of the pistons recloses the ports at each braking position. In emergency position valve I is moved to the extreme right hand position to connect ports 14, 21 directly by the groove 10. To release, main reservoir is connected to chamber A<1> which moves the slide valves in opposite directions to connect rapidly the main reservoir to the train pipe.
Patent GB-1000660-A (GB)
Title: Improved process for the polymerisation of olefines
IPC: C08F10/00
Filed: 1963-07-11
Abstract: Polymers of olefines, e.g. ethylene, are made by effecting the polymerization of the olefines in the presence of a catalyst comprising a transition metal compound, and 0.01 to 1 gram molecule of an anhydride of a carboxylic acid per gram atom of transition metal.  The catalyst is preferably constituted by (a) a metal, a hydride, or an organo-metallic compound of a metal of Group IV, V, or VI, of the Mendel<\>aeeff Periodic Table, (b) an inorganic compound of a polyvalent metal having at least three valences, and (c) a halide of an element of Group III. The anhydride controls the molecular weight of the polymer, and also prevents accumulation of polymer on the walls of the reactor.  The catalyst exemplified is TiCl4, Sn(C4H9)4 and AlCl3.  Exemplified anhydrides are phthalic, acetic, maleic and benzoic.  Specification 860,407 is referred to.
Patent GB-821255-A (GB)
Title: Improvements relating to electric busbar systems
Inventor: AMER DONALD FOSTER
IPC: H02B1/24
Filed: 1956-09-07
Abstract: 821,255. Arc-rupturing in switches. REYROLLE & CO. Ltd., A. Sept. 7, 1956, No, 27530/56. Addition to 758,252. Drawings to Specification. Class 38 (5). The invention of the parent Specification is modified by the use of inductive and/or capacita. tive impedances in the case of a polyphase busbar system or by adapting the system for use in a direct current or single-phase alternating current arrangement using any kind of switching impedance.
Patent GB-1235187-A (GB)
Title: A method of printing
Inventor: KONGSTAD POUL-HENRIK
IPC: G03F1/92
Filed: 1968-06-10
Abstract: 1,235,187. Printing process. P. H. KONGSTAD. 10 June, 1968 [12 June, 1967], No. 27581/68. Heading B6C. [Also in Divisions G2-G3] Images of printed matter are formed on a photographic material by (1) relief printing a mirror-reversed image on to a light-permeable sheet (e.g. on to a paper sheet using a conventional flat-bed offset machine); and (2) photographically contact printing from this sheet optionally together with a conventionally made photographic negative, the printed surface of the sheet being in contact with the photographic material and the printing exposure being effected through the sheet.
Patent GB-837955-A (GB)
Title: Removing resin from metallic surfaces
Inventor: HYAM NORMAN HENRY
IPC: C23G5/02
Filed: 1957-09-02
Abstract: An organic resinous coating is removed from a metallic surface by treating the surface first with a stripping composition containing a phenol and/or a chlorinated hydrocarbon, and then with a solution of chromic acid.  Examples of phenols and chlorinated hydrocarbons are, respectively, phenol, cresol and xylenol; and monochlor-, dichlor-, and trichlor-benzene, trichlortoluene, methylene chloride, ethylene dichloride, methyl chloroform, dichlorethylene, trichlorethylene and p  perchlorethylene.  The stripping composition may also contain a detergent emulsifier, e.g. an alkali metal (including ammonium), amine or alkanolamine salt of an organic acid, such as potassium oleate, or a non-ionic condensation product of ethylene oxide with aromatic materials and fatty alcohols, and an inhibitor, e.g. sodium phosphate and sodium chromate, and is preferably used as an aqueous solution.  The chromic acid solution is preferably of 5-15% w/v strength, and may also contain an inhibitor such as barium and/or silver chromate.  Between the treatments with the stripping composition and the chromic acid solution, the surface may be treated in an alkali solution, e.g. one containing an alkali metal silicate such as sodium metasilicate, an alkali metal carbonate, an alkali metal phosphate, an alkali hydroxide, or an aluminate.  If necessary, the surface may again be treated in the alkali solution after treatment with the chromic acid solution, and then be treated again in the chromic acid solution.  Metallic surfaces composed of aluminium alloys, magnesium alloys, steels and cadmium-plated steels, may be treated.  Coatings formed of phenolic resin are referred to.
Patent GB-690797-A (GB)
Title: Arrangement for the adjustment and maintenance of the mixing proportions of two different fuels for charging boilers with a travelling fuel bed
IPC: F23K3/00
Filed: 1951-11-26
Abstract: 690,797. Feeding fuel to boilers. FEIGENSPAN, O. Nov. 26, 1951. [Nov. 25, 1950] No. 27720/51. Class 78 (i). An arrangement for feeding the feed hopper of the travelling grate of a boiler with two different fuels either by means of a swinging shoot having separate outlets for the two types of fuel, or bv means of a fixed delivery shoot delivering to a distributer frame adapted to reciprocate over the grate hopper and comprising separate outlets for the two types of fuel, the said outlets being provided with shutoff members controlled in accordance with the position of the swinging chute or distributer frame along its working path. The shut-off members may be in the form of a slide, flap, or rotatable disc.
Patent GB-646164-A (GB)
Title: Improvements in or relating to electroacoustic transducers
IPC: H04R13/00
Filed: 1947-10-16
Abstract: 646,164. Sound producing or receiving devices. WESTERN ELECTRIC CO., Inc. Oct. 16, 1947, No. 27761. Convention date, Oct. 19, 1946. [Class 40 (iv)] In an electro-acoustic transducer having a ring armature 14 carrying a non-magnetic diaphragm 15 at its centre, the top of the annular magnet 12 is co-planar with the pole face of an annular inner pole-piece 10 and the working air gap is determined by a magnetic spacer 13 between the top of the magnet and the outer edge of the annular armature. The permanent magnet 12 is soldered to a flange 11 on the cylindrical pole-piece 10 and the spacer 13 supports the armature 14 and two additional spacers 16 and 18 which in turn support an auxiliary radially magnetized magnet 17. Spacer 18 is of magnetic material, and with the magnet 17, which is weaker than the main magnet, gives increased efficiency for a given air gap whilst spacer 16 which is non-magnetic is spaced from the armature 14 so that restraint of vibration of the latter is minimised and since it extends over a substantial portion of the armature it prevents adherence of the armature to the magnet 17. Operating coils 22 and 24 are connected in series to terminals 26 and 27 in the base-plate 21 which is shaped to create a damping chamber at the back of the diaphragm. In a further embodiment, Fig. 4 (not shown), equally-spaced polepieces carrying individual coils replace the single polepiece 10 and the baseplate has apertures covered with acoustic resistance material which serve, together with the chamber referred to above, to give an improved response throughout the working range. Radial slots from the outer periphery of the armature (Fig. 7, not shown) and armatures of varying radial thickness for securing a desired resonance frequency are also mentioned. The dish-shaped diaphragm 15, which is formed of a synthetic fibre cloth impregnated with a phenol-aldehyde condensation product giving it a low mass and a high modulus of elasticity, is secured to the inner marginal portion of the armature by a suitable cement and is protected by a moisture-proof membrane 19 which overlies it. In a further embodiment (not shown) the outer rim is stiffened by fluting.
Patent GB-1291660-A (GB)
Title: Isobutyric acid derivatives
IPC: C07D311/30
Filed: 1971-06-14
Abstract: 1291660 Chromone derivatives BOEHRINGER MANNHEIM GmbH 14 June 1971 [16 June 1970] 27778/71 Heading C2C The invention comprises compounds of formula and their pharmocologically compatible salts, wherein R 1  and R 2  are each H, C 1-3  alkyl or Ph, and R is H, C 1-3  alkyl (possibly substituted by amino, alkylamino, dialkylamino or a 5-7 membered ring containing 1 or 2 N or O atoms) or N-alkylpiperidyl. These compounds may be prepared by reacting (1) a 7-hydroxychromone with XCMe 2 CO 2 R, where X is a reactive residue, (2) 2,5-R 2 CH 2 CO(RO 2 CCMe 2 O)C 6 H 3 OH with R 1 CO 2 R<SP>1</SP>, where R<SP>1</SP> is C 1-3  alkyl, (3) the acid of the above formula (R = H) or its reactive derivative (e.g. the acid chloride) with ROH or its reactive derivative, (4) the above ester with a hydrolysing agent. Therapeutic compositions for lowering the level of the serum lipids, comprise compounds of the above formula. Administration is preferably oral.
Patent GB-587265-A (GB)
Title: Improvements in vehicle wheels
IPC: B60B7/06
Filed: 1945-10-23
Abstract: 587,265. Vehicle wheels. DUNLOP RUBBER CO., Ltd., and GOUGH, F. H. Oct. 23, 1945, No. 27841. [Class 144 (i)] The studs or equivalent devices 3, Fig. 2, over which a snap-on closure-cap 4 is fitted to cover the centre-portion of a detachable wheel 1 are provided with rubber or like resilient seatings for the engaging rim-portion of the cap. In the form shown in Fig. 3, the seating 6 is fitted in a groove in the stem of a coned stud 5. Fig. 6 shows a modification in which a resilient sleeve 12 is fitted on a reduced portion 11 of the stud which is detachably secured to the wheel by a rubber cap 13 sprung over the inner headed end of the stud. In a further modification, the complete stud is formed of resilient material.
Patent GB-1398014-A (GB)
Title: Device for measuring the water-vapour content of a liquid or gaseous medium
IPC: G01N27/12
Filed: 1972-06-14
Abstract: 1398014 Measuring water-vapour content and temperature electrically COMMISSARIAT A L'ENERGIE ATOMIQUE 14 June 1972 [21 June 1971] 27855/72 Heading G1N A hygrometer probe for detecting water-vapour content of a medium comprises a thermocouple element having a diameter of 1-2 mm, having an aluminium coating which supports a layer of alumina over which is disposed a porous metal coating of Cr or NiCr. Connections between this coating and the thermocouple enable the impedance and hence the moisture content to be determined, and the thermocouple allows temperature measurements to be made.
Patent GB-1356752-A (GB)
Title: Rotary valve
IPC: F16K1/228
Filed: 1972-06-15
Abstract: 1356752 Valves JAMESBURY CORP 15 June 1972 [1 July 1971] 27929/72 Heading F2V  A cryogenic butterfly valve comprises a seat ring 40 having a heel portion 51 housed between a metal ring 30 and a valve body 60, a bridge portion 52 and a lip portion 50 which has, at normal temperatures, an interference I with the butterfly disc in the closed position. When cryogenic fluid is introduced into the inlet 18, the seat ring contracts as allowed by a groove 53 and pivots on a lug 64 of the valve body towards the sealing surface of the butterfly disc.
Patent GB-464233-A (GB)
Title: Ignition magneto especially for use with automobile engines
IPC: H02K21/38
Filed: 1936-10-14
Abstract: 464,233. Inductor magnetos. BRUZA, V. Oct. 14, 1936, No. 27956. Convention date, Oct. 14, 1935. [Class 35] In an ignition magneto of the inductor type, parallel and symmetrical with the axis of the winding 12 are arranged magnetic bridges 11 connected to a multipolar permanent magnet 13, the bridges co-operating with the inductor comprising a rotating arc 15 having L-shaped segments 17, 27 at the ends, one limb of each segment adjoining the insulating bobbin 14 of the winding while the other limb adjoins the bridges 11 and projects away from the bobbin. As shown in connection with a magneto having a four-pole magnet 13, Figs. 1 and 3, the magnet surrounds and contacts at its poles with four laminated magnetic bars 11a ... 11d, cast in a casing 10 of aluminium, synthetic resin or other non-magnetic material. The magnet may be located at the lower end of the casing or there may be a magnet at each end. The inner faces of the bridges 11a ... 11d may lie on the surface of a cylinder or may be stepped as shown so that the bobbin 14 is held against movement. The core 15 of the inductor is built up of segments as shown in Fig. 3, clamped together by an insulating tube 16. The L-shaped segments are fixed by brackets to discs 19, 29 secured to the ends of the core and the segments at one end are angularly displaced to the extent of a pole pitch with respect to those at the other end. The discs 19, 29 respectively are formed with spigots carrying ball bearings 20, 30 and the upper spigot is tapered to receive interrupter and distributer mechanism 33, 34. The inductor parts are held together by a stud 32 screwed into the disc 29 and engaged by a nut 22 located in the hollow spigot of the disc 19. A groove provided in the end of this spigot is engaged by a radial key formed on the end of the driving shaft 25 or an automatic timing mechanism 24 driven by the shaft 25. In a modification, Fig. 5, the magnet 13 is starshaped and is located inside the casing. A magnet of this kind may be provided at the upper end or at each end. The discs 19, 29 may be of magnetic material to prevent demagnetization of the permanent magnet, and each is slotted radially to reduce eddy currents. The bearing housings 21, 31 are of non-magnetic material, and the former may be integral with the casing 10 while the latter forms part of a casing enclosing the interrupter and distributer.
Patent GB-264949-A (GB)
Title: Electrical time-lag devices
IPC: H05B6/06
Filed: 1925-11-06
Abstract: 264,949. British Thomson-Houston Co., Ltd., (General Electric Co.). Nov. 6, 1925. Vacuum tubes.-A thermionic valve 1 used for introducing a time lag in the operation of a switch 4 comprises electrodes 8, 10 in the operating circuit and electrodes 9, 11, 23 in the control circuit, and also a device for maintaining the pressure of an ionizable medium constant. This device comprises a hot cathode 24, grid 25, main anode 26, and auxiliary anode 27. If the gas pressure decreases owing to condensation in the cold part of the valve, the current between the cathode 24 and the anode 27 decreases with a resultant fall in potential difference across a resistance 31. As this potential difference opposes that of a grid biasing battery 32, the potential of the grid 25 increases and therefore a stream of electrons bombards the anode 26 and liberates secluded gas until the pressure is restored to the normal. Adjustment of resistances 31, 33 determines the normal pressure.
Patent GB-340275-A (GB)
Title: Improvements relating to pipes
IPC: B28B21/72
Filed: 1929-09-17
Abstract: 340,275. Non-metallic pipes. STANTON IRONWORKS CO., Ltd., Nottingham, and CORNELIUS, F. B., The Bungalow, Stanton-by-Dale, Derby. Sept. 17, 1929, No. 28168. [Class 99 (ii).] In the manufacture of composite pipes composed of an outer protective layer of bituminous material and an inner layer of concrete, the material for the outer layer is introduced into a mould and spun wholly by centrifugal force the material for the inner layer being introduced subsequently and spun in the same way. The bituminous material may be introduced in a molten condition and allowed to set before the inner layer is deposited. Wire or other reinforcing material coated, if desired, with bitumen or the like may be embedded in the concrete. Before the moulding operation, the interior of the mould may be washed or coated with a clay or other medium inhibitive to adhesion of bitumen to the mould. The proportions of a suitable bituminous material are given in the Specification.
Patent GB-355980-A (GB)
Title: Apparatus for correcting displacement of weft threads in cloth
IPC: D06H3/12
Filed: 1930-09-22
Abstract: 355,980. Straightening weft of cloth. LYTH, J. J., Valleyfield, Quebec, Canada. Sept. 22, 1930, No. 28267. Convention date, Dec. 12, 1929. [Class 100 (i).] Apparatus for straightening the weft of cloth comprises two sets of rollers arranged in two normally parallel planes, over which rollers the cloth passes in zig-zag manner, the sets of rollers being relatively adjustable so that the path of one edge of the cloth can be extended while that of the other edge is reduced. As shown, the cloth 20 passes round an upper set of rollers 18 mounted on a frame 11 and a lower set of rollers 19 mounted on a lower frame 12. The frame 11 is suspended from the ceiling by rods 13 passing through brackets 14 and carrying nuts 15. The frame 12 is mounted, midway of its length, on pivots 17 in brackets 16 secured to the frame 11, and the pivotal movement of the frame 12 is effected by a screw 24 rotatably mounted in a guide 22 trunnioned in a bracket 21 on the frame 11 and threaded through a nut 23 trunnioned in a bracket on the frame 12. The screw is operated by the observer from a position beneath the apparatus by means of an endless chain 27 passing round a chain wheel 26 fixed to the screw 24.
Patent GB-1161307-A (GB)
Title: Improvements in Rail Stretching Machines
Inventor: MARTYN PETER HENRY
IPC: B21D3/12
Filed: 1968-06-14
Abstract: 1161307 Stretching rails; vices GREENSIDE HYDRAULICS Ltd 14 June 1968 28290/68 Headings E1G G29 and C20X6 A rail stretching machine for use when welding together railway rails to produce gap-free track comprises a pair of crossheads 2A, 2B, one connected between the rams 5 or between tie-bar extensions to the rams and the other connected between the cylinders 1, each crosshead having in the underside a recess 7 tapering in width in the lengthwise direction of the rams and cylinders and diverging towards the other crosshead, and a pair of wedges 8 in each recess with parallel mutuallyfacing grooves 9 of semi-circular cross-section and with serrations 10 or other tooth-like formations extending round the grooves. Screws 12 are provided for tightening the wedges before actuation of the hydraulic rams by a hand pump 6.